1) Ductile cast iron fitting-All flanged tee 2)Class K9/K12/K14, ... ,EN545,BS4772 4)Strength,Durability 1.Ductile cast iron fitting-All flanged cross produced according to ISO2531, EN545, BS4772, EN598, ... flange, flange bell mouth, collar and so on. Hydrostatic test: Norminal Diameter mmPressureTest time≤300≥25 Pa≥15S350-600≥16 ... fittings≥420MPa≥5%≥300MPa≤250HB Ductile cast iron fitting-All flanged cross